Exhaust Noise - Wartsila 31 Product Manual

Wärtsilä 31 Product Guide
Engine A-weighted Sound Power Level in Octave Frequency Band [dB, ref. 1pW]
[Hz]
10V
15.5

Exhaust noise

The results represent typical exhaust gas free field linear sound power levels at engine full
load and nominal speed.
Exhaust Gas Sound Power Level in Octave Frequency Band [dB, ref. 1pW]
[Hz]
8V
10V
Wärtsilä 31 Product Guide - a1 - 18 October 2016
125 250
8V 100 110
99 107
32 63
144 147
149 140
500 1000 2000
115 121
115 118
125 250 500
129 128 126
134 133 131
15. Vibration and Noise
4000 8000
119 116 114
121 118 114
1000 2000 4000
123 120 118
127 125 121
Total
125
125
Total
149
150
15-3